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Finding the Fourth Proportional to 455.83, 683.65 and 181.83

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Solution

The fourth proportional to 455.83, 683.65 and 181.83 is: 272.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    455.83 : 683.65 = 181.83 : x
  2. Step 2: Convert to fraction form
    455.83/683.65 = 181.83/x
  3. Step 3: Cross multiply
    455.83x = 683.65 × 181.83
  4. Step 4: Simplify right side
    455.83x = 124,308.08
  5. Step 5: Solve for x
    x = 124,308.08/455.83
  6. Step 6: Final answer
    x = 272.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.